Environmental services industry

Additivity properties in metapopulation models: Implications for the assessment of marine reserves

Article Abstract:

Different assumptions regarding connectivity and dispersal that can lead to different assessments of marine reserves are explored by developing a class of spatially explicit models. The analysis illustrates how the incorporation of space into models of resource exploitation raises fundamental questions about the relationship of aggregate biological production to the production level in each patch.

The lay system in commercial fisheries: origin and implications

Article Abstract:

The use of econometric modeling to analyze the workings of the lay system of remuneration in commercial fisheries is discussed. Its origin as an incentive mechanism and its utilization to study firms' behavior is also discussed.